deltanet home page represents a topic that has garnered significant attention and interest. hybridization - CHEMISTRY COMMUNITY. Hybridization is the idea that different orbitals, s, p, or d, will hybridize to all become the same energy in order to allow for more bonding. In the case of ammonia, NH 3 N in the ground state has an valence electron configuration of 2s 2 2p 3.
So what will happen is the s and the p orbitals on the nitrogen will hybridize to form 4 sp 3 orbitals so that all electrons are the same energy when ... Similarly, delta S total - CHEMISTRY COMMUNITY. During the midterm review, it was stated that when Delta S total is 0.
Could someone explain how it can be zero and what the significance is? Top Anh Nguyen 2A Posts: 36 Joined: Fri Sep 29, 2017 2:05 pm Been upvoted: 1 time Another key aspect involves, ligand - CHEMISTRY COMMUNITY.
Ethylenediamine, which we'll see abbreviated as "en," is an example of a bidentate ligand. Its formula is C2H4 (NH2)2. The nitrogen atoms both end up having a lone pair of electrons, so the whole ligand ends up having a total of two lone pairs of electrons.
This means the compound has two sites where it is able to bind to another atom/ion, so it's bidentate. A good rule of thumb I use is just ... molar entropy - CHEMISTRY COMMUNITY.
This perspective suggests that, first try to look at the overall mass of the molecule; the molecule with more atoms will likely have more entropy. Then, if they have the same number, look at the variety of atoms; different types of atoms allow or different positions to be made (positional disorder increases --> entropy increases). You can also look at the shape of the molecules; the shape/structure that is the most flexible ...
Test 2 - CHEMISTRY COMMUNITY. Test 2 Any general non-science questions (software questions/problems, etc.,) and class announcements. A ligand is any atom or ion that binds with the central metal atom in a coordination complex through coordinate covalent bonds. Coordinate covalent bonds require both electrons to come from the same atom, thus it requires a lone pair. Top 2 posts • Page 1 of 1 Return to “Shape, Structure, Coordination Number, Ligands” Jump to
finding molarity - CHEMISTRY COMMUNITY. Furthermore, finding molarity for an acid or base is the same way as finding the molarity in the fundamentals chapter (Molarity = moles/ volume (L)). You can also find molarity through pH. By taking the inverse log when the pH or pOH is known, you can find the respective acid or base molarity.
Top Kaylee Clarke 1G Posts: 103 Joined: Fri Aug 30, 2019 7:15 am Helium has the electron configuration 1s2 so it should belong to the s-block, but helium is placed with the p-block because helium is a noble gas (it has a full electron shell) so it is placed with the other noble gases in group 18. The periodic table is also sorted based on chemical properties, hence helium is placed with elements similar to it.
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